Shoe upper



FIG. 1 is a front perspective view of a shoe upper showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is an enlarged and isolated side view thereof eliminating disclaimed environmental regions.

The uneven broken lines immediately adjacent to the shaded area represent unclaimed boundaries of the design. The broken line showing of the two circular eyelets is for illustrative purposes only and forms no part of the claimed design. The uneven broken line showing of the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 